Anti-battery reverse installation structure of battery box
A battery box anti-battery reverse installation structure includes a battery box body for holding more than two batteries, at least two groups of positive and negative contact points are arranged in the box body, the positive and negative contact points are opposite to each other, and the adjacent groups of positive and negative contact points are opposite to each other, and the battery is placed between the positive and negative contact points. The two sides of each group of negative contact points are provided with groove plates, and a limiting groove for limiting the negative end of the battery is formed between the two groove plates on the two sides. The side of each group of positive contact points is provided with a limiting plate, and the limiting plate is provided with a notch for limiting the positive end of the battery. The negative contact may be a metal spring with one end fixed in the battery case, and the positive contact may be a metal sheet fixed in the battery case. The groove plate is arranged along the length direction of the battery, the lower part is a vertical sheet, and the upper part is an arc-shaped sheet close to the central axis of the battery. The groove plate can be formed by injection molding together with the battery box body. The limit piece was located on the sheet that was formed by the injection molding of the battery box. The width of the notch was slightly larger than the width of the positive terminal of the battery (for example, the width was 4.6mm), and the height of one side of the plate on both sides of the notch was equivalent to the height of the central axis of the battery. The working principle of the device is as follows: the negative terminal of the battery will not be installed and deviated to contact the adjacent positive contact through the limit groove, and the negative terminal of the battery will not be contacted with the positive contact when the battery is inverted through the notch, so as to avoid the battery from heating up due to the reverse installation of the battery and protect the service life of the battery. Read more exciting novels for free
DSLR battery installation
The steps to install the DSLR battery are as follows: first open the compartment cover (usually located at the bottom of the camera). You can open the battery compartment by pressing the button forward and then directly opening it. Then insert the battery, so that the battery corner is on the left, the "Canon" logo is facing outward, and the battery is inserted into the battery compartment with the electric shock facing down. After inserting it, press it and hear a "click" sound. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
reverse battery protection
Reverse battery protection was to prevent damage to the circuit that used the battery as the power source when the battery was connected in reverse in the direct current system. The following are a few common battery protection methods: ** 1. Use a relay and a relay to make a reverse protection circuit ** 1. ** Circuit Connection and Working Principle ** - He connected the battery to the relay and the coil, connected the battery to the relay, and connected the battery to the relay coil. He used a light bulb to replace the circuit. - When the positive and negative poles of the battery were correctly connected, the positive voltage passed through the relay coil through the relay coil, then passed through the coil to the negative pole, and then the contact was pulled in. The circuit obtained a positive voltage and worked normally. - When the positive and negative connections were reversed, the relay coil would have no current, so it would not be pulled in, and the circuit would not supply power to protect the circuit components behind it. After the positive and negative were reconnected, the circuit would continue to work. ** 2. Use MOS tubes as reverse protection for the battery ** - ** P-Channel Metal-Coupled Devices ** - ** Basic Connection **: The MOS tube is connected to the positive pole of the battery (drain-the positive pole of the battery, power supply-the positive pole of the power supply, grid-the negative pole of the battery, or ground). - ** Principle of operation **: When the battery voltage is present, the current will flow to the Body Diode. If the battery voltage is higher than the forward bias voltage of the body, the body will be turned on. At this time, the voltage level in the source of the Metalifu is the battery voltage minus the body voltage drop. Since the gate of the Metal-Channel Devices is connected to the negative terminal of the battery or to ground, the voltage applied to the gate-to-source will be negative. Once the gate-to-source voltage requirement of each Metal-Channel Device Data Table is met, the P-Channel Metal-Channel Devices will activate, the channel will be closed, and the current will flow to it instead of to the Body Diode. - ** Basic requirements **: - The basic electrical connections must be made according to the recommendations. - In terms of gate-source threshold voltage, in order to turn on the P-channel semiconductor, the difference between the battery voltage and the body conductor had to be higher than-1V (different mosfetts had different requirements). For low-voltage systems, it was best to choose a mos with a very low gate-to-source threshold voltage. - The maximum gate-source voltage specifications of the Metalgate must not be reached, or it will be damaged. - The drain current rating of a consecutively connected drain must be higher than the actual current flowing into it. - In terms of rated power, the calculated power consumption must be lower than the rated value of the device (for example, a device with a rated power dissipation of 8.3W at 25°C, the actual calculated power consumption must be lower than this value and leave a margin). At the same time, pay attention to the operating temperature range. - ** N-Channel Metal-Coupled Devices ** - ** Basic Connection **: The Ruoyun is connected to the negative pole of the battery (drain-the negative pole of the battery, source-the negative pole of the device or ground, grid-the positive pole of the battery). - ** Working principle **: During the circuit start-up period, the current flows from the positive terminal of the battery to the device, then to the body junction, and finally to the negative terminal of the battery. The body junction is turned on when it is forward-biased. At this time, the gate-source voltage is positive, and the Ruoyun begins to turn on, and the current will flow to the channel instead of the body junction. - ** Basic requirements **: - The basic electrical connections must be made according to the recommendations. - In terms of gate-source threshold voltage, it was not enough to just use a positive voltage to bias the gate to the source. It must meet the required level. For low-voltage systems, it was best to choose a Metal-Doped Circuit with a very low gate-to-source threshold voltage. - Pay attention to the maximum grid-source voltage rating. - The current rating shall meet the requirements of the data sheet. ** 3. Other methods ** It can also use series connection of the two, the rectify bridge, and the MOS protection.(specify gate, source, drain), fuse +TVS (When the voltage is greater than a certain value, such as 5.6V, it can dissipate a large amount of power and absorb the instantaneous high current caused by the instantaneous high voltage pulse. The fuse can choose a self-restoring fuse. When the current becomes very large, the resistance will also become very large, and it will recover after a period of time.) Connecting a large capacity at the back end could prevent the back-end circuit from being impacted (for example, when the 5V circuit suddenly connected to the 12V power supply, there was a time difference in the TVS's connection, and the large capacity could make the voltage slowly climb). <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Lithium-ion battery charging chip with reverse battery connection
The following are some lithium battery charging chips with reverse battery protection: - YB5156: This is a 1A linear lithium battery charging IC chip with reverse battery protection. - TP4067: It was a complete single-cell lithium battery charger with a single-chip chip with battery positive and negative reverse connection protection and input power supply positive and negative reverse connection protection. - " Texas Instruments BQ24040: This is a 1A single-section linear lithium battery charging chip with input over-voltage protection function, from Texas Instruments. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
The DSLR battery is full and out of battery
If the DSLR battery is fully charged but quickly dies, there may be the following reasons and solutions: 1. ** Overuse of camera power-consuming equipment ** - The camera's LCD and flash consumed a lot of power. Try to reduce the use of the LCD monitor, you can use the viewfinder for shooting; reduce the number of flash shots; avoid using the LCD screen, autofocus, and shutter at the same time, you can use them separately. - In cold temperatures, the discharge speed of the battery was faster. To keep the battery warm, take it out and wrap it with a cloth when not in use. 2. ** Problem with the battery itself ** - You may not be using a high-quality recharged battery. It is recommended to use a lithium-ion battery with a longer service life. - If the battery is damaged, it may need to be replaced. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
The battery life of the battery of the Sonny camera
The original batteries of the Sony-branded cameras were basically lithium-ion batteries, and the number of charges was about 3 - 500 times. If it was charged once every three days, it could be used for about three years, but this was related to people's charging habits and battery maintenance. For example, lithium-ion batteries had no memory and did not need to be charged for more than 12 hours like traditional batteries. The camera itself and the charger had protection circuits that would no longer work after the battery was fully charged. In actual use, the battery life of different models of Sony-made cameras was different. For example, the NP-FZ100 lithium battery used in the Sony-made micro-camera had a battery life of nearly 500 photos. The battery life of the A9III could reach 530 photos when using the LCD (Cipa test standard) and about 400 photos when using the electronic viewfinder. The battery life of the Sony-ZV-E10II could last nearly two hours. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
The camera battery is full and out of battery
If the camera battery runs out quickly after being fully charged, there may be the following reasons and solutions: - ** The camera itself consumes a lot of power **: - The camera's LCD and flash consumed a lot of power. Try to reduce the use of the LCD monitor, you can use the viewfinder for shooting; reduce the number of flash shots; avoid using the LCD screen, autofocus, and shutter at the same time, you can use them separately; and enable the camera's power-saving mode. After a predetermined period of inaction, the camera will automatically turn off. - In cold temperatures, the discharge speed of the battery was faster. In order to keep the battery warm, please take it out and wrap it with a cloth when not in use. - ** Problem with the battery itself **: - Make sure you use a high-quality battery, such as a lithium-ion battery with a longer life. - If the power suddenly went out because of the quality control of the battery, you could consider replacing the battery with a reputable, sub-factory battery or original battery that was recognized by most photographers. For example, batteries from brands like Pinsheng (for reference only). <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Why is the Nikon battery box not supplying power?
There could be several reasons why the Nikon battery pack did not provide power: 1. Batteries: - The battery was running low, and the battery might reach its end of life. Generally speaking, the battery might need to be replaced once every two to three years. If it was a Nikon D3000 series camera that prompted," This battery cannot be used. Please select the specific battery for this camera." It might be that the battery life has expired, or it might be that the battery and the body contact are not in good contact. You can carefully clean the body and battery contacts before trying again. - If the battery was from the sub-factory, there might be compatibility issues. For example, if the domestic battery was used on the Nikon D3200, it might not work normally. Sometimes, the battery might return to normal after the two poles were short-circuited and then inserted into the body, but the sub-factory battery had problems such as fast decay. In addition, the use of fake batteries would also cause abnormal power supply. For example, the Nikon Z7 II would crash when using fake batteries. 2. Charging related: - The charger was faulty. If a special charger was used, the damaged charger might cause the battery to not be charged, and the battery box would not supply power. - For some Nikon cameras, if they were not charged according to the correct charging method, for example, when charging the Nikon D5300 camera kit, the initial charging was divided into two stages. If the operation was not done properly, it might affect the battery performance and cause power supply problems. If the temperature of the battery was not controlled at 35 - 40 ° C during the charging process, for example, if the temperature was too high or too low, it might also affect the battery performance and power supply. 3. Problem with the camera: - A malfunction in the internal circuit of the camera may cause the battery to be unable to be recognized or the battery to be unable to receive power normally. For example, the Nikon D5300 camera may have internal circuit problems that affect the battery supply. - If there was a problem with the connection between the battery box and the camera, it would also cause the power supply to be cut off. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Can the camera battery be placed in a waterproof box?
The camera battery can be placed in a waterproof box. The camera battery was afraid of moisture, and the moisture box could effectively reduce the humidity, which could be used to store some precision instruments. However, the battery storage was particular. It could not be stored at full power or without power. The best remaining power of the lithium-ion battery was about 20%, and the temperature was best between 0 - 15 ° C. No matter what kind of battery it was, if it was not used for a year or half a year, it was best to charge it several times. In addition, when the camera was not in use, whether it was a lithium battery or a fifth battery, it had to be removed from the camera and stored separately. In particular, disposable batteries could not be placed in the camera for a long time. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
The car battery is broken, and there is no response from the battery.
There might be several reasons for a broken car battery to not respond: 1. ** The battery itself has a problem ** - [** Life Expired **: The battery's life has expired, and its power storage ability has decreased.] In this case, even if it was charged, the battery could not effectively store electricity and could not provide enough electricity for the start. The battery needed to be replaced. - ** Multiple Power Loss Damage **: The battery has been out of power for many times. It may be damaged and cannot store power. For example, if the battery was seriously short of power and the charging time was too short, the battery was not enough to support the car to start. At this time, the battery needed to be replaced. 2. ** Spark plug or ignition coil problem **: When the car is still unable to start after charging, it may be a problem with the spark plug or ignition coil. The spark plug or ignition coil needs to be replaced. 3. ** Electricity Operation Problem ** - ** Wrong wire connection **: Check if there is a wrong wire connection. When the connecting wire of the rescue electric connection was too thin, it would cause insufficient current. Also, due to improper operation during the electric connection, the connecting wire was not connected well, resulting in insufficient voltage and current, so the fire could not be started. - ** Reverse Positive and Negative Poles **: If the positive and negative poles of the battery are reversed, it may burn the fuse or even the computer and other accessories in the car, resulting in no response. Also, when connecting electricity, it should follow the order of connecting the positive pole first, then the negative pole, then the negative pole, and then the positive pole. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
The Canon battery is out of battery. Is the display light on?
If it was a Canon camera battery, the indicator light of the charger would light up during charging. The lower the battery, the slower the charging flash. When the battery was full, the flash would be faster. When the battery was full, the indicator light would always be green. For example, when Canon 70D was charging, it would flash once per second, orange, indicating that it was charging, and the battery was 0 - 49%. It would flash twice per second, orange, indicating that it was charging, and the battery was 50 - 74%. It would flash three times per second, orange, indicating that it was charging, and the battery was 75% or higher. When it turned green, it meant that the battery was fully charged. There might be differences between different models, but in general, the indicator light would show the charging status when charging. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>